#include <iostream>
#include <algorithm>
using namespace std;

bool cmp(char a, char b){
	return a > b;
}

int main(){
	string s;
	cin >> s;
	s.insert(0, 4 - s.length(), '0');
	do{
		string a = s, b = s;
		sort(a.begin(), a.end(), cmp);
		sort(b.begin(), b.end());
		int result = stoi(a) - stoi(b);
		s = to_string(result);
		s.insert(0, 4 - s.length(), '0');
		cout << a << " - " << b << " = " << s << endl;
	}while(s != "6174" && s != "0000");
	return 0;
}
